Fabrication of CuFe_(2)O_(4)/Bi_(12)O_(17)Cl_(2) photocatalyst with intrinsic p-n junction for highly efficient bisphenol A degradation  

作　　者：Yong Wang Cheng Liu Haoyun Hu Qiujun Lu Haiyan Wang Chenxi Zhao Fuyou Du Ningli Tang 

机构地区：[1]Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials,College of Chemistry and Bioengineering,Guilin University of Technology,Guilin 541004,China [2]College of Biological and Environmental Engineering,Changsha University,Changsha 410022,China

出　　处：《Journal of Environmental Sciences》2024年第2期547-558,共12页环境科学学报（英文版）

基　　金：the financial support from the National Natural Science Foundation of China (No.21964006);the Changsha Science and Technology Planning Project (No.kq2203003);the Natural Science Foundation of Hunan Province (No.2020JJ4640);the Scientific Research Fund of Hunan Provincial Education Department (No.20A050);the Scientific Research Found of Changsha University (No.SF1934)。

摘　　要：The construction and application of novel highly efficient photocatalysts have been the focus in the field of environmental pollutant removal.In this work,a novel CuFe_(2)O_(4)/Bi_(12)O_(17)Cl_(2)photocatalysts were synthesized by simple hydrothermal and chemical precipitation method.The fabricated CuFe_(2)O_(4)/Bi_(12)O_(17)Cl_(2)composite exhibited much higher photocatalytic activity than pristine CuFe_(2)O_(4)and Bi_(12)O_(17)Cl_(2)in the removal of bisphenol A(BPA)under visible-light illumination,which ascribed to the intrinsic p-n junction of CuFe_(2)O_(4)and Bi_(12)O_(17)Cl_(2).The photocatalytic degradation rate of BPA on CuFe_(2)O_(4)/Bi_(12)O_(17)Cl_(2)with an optimized CuFe_(2)O_(4)content(1.0 wt.%)reached 93.0%within 30 min.The capture experiments of active species confirmed that the hydroxyl radicals(·OH)and superoxide radicals(·O_(2)^(-))played crucial roles in photocatalytic BPA degradation process.Furthermore,the possible degradation mechanism and pathways of BPA was proposed according to the detected intermediates in photocatalytic reaction process.

关 键 词：Bi_(12)O_(17)Cl_(2) CuFe_(2)O_(4) Heterojunction Bisphenol A Photocatalytic degradation 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] X703[环境科学与工程—环境工程]